+1 for jeep2007s choice. I spoke with DTO and am looking at this setup -
18x8.5 GFX OR9 +18mm offset / 285/65R18 Nitto Trail Grappler
I don't have a lift on my 09 Sahara and we've determined that this setup will fit.
As Tom points out, there are less choices on 18s, and the price is a bit higher (about $50 per wheel), but I like the way the 18s look - just want a better looking wheel and a bit more aggressive tire. The Bridgestone's that came on my stock Sahara work quite well, but I want something that has just a bit more bite to it for camping, hunting, and making new roads...
(DTO customer service ROCKS!)